Air-insulated Switchgear up to 24 kV

1. Alstom Electrical Industries (Pty)
Ltd

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PIX & PIX-H
Air-insulated Switchgear up to 24 kV
Emrah Aksoy
Tendering & Sales Manager
AREVA T&D
ATM
Gebze/TURKEY
22 September 2008
Greg Whyte
Sales & Customer Services Manager
ALSTOM ELECTRICAL INDUSTRIES
MV SWITCHGEAR
Knights/SOUTH AFRICA

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PIX
Solutions Worldwide

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Air-insulated Switchgear
PIX
PIX
The Switchgear Family
PIX
High
PIX
Motor Control
Center
PIX
DBB 17.5kV
(BIL 95kV)

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PIX
The Switchgear Family
50 kA
16 kA
20 kA
25 kA
31.5 kA
40 kA
5000 A
4000 A
3150 A
2500 A
2000 A
1600 A
1250 A
630 A
PIX High
(12, 17.5 kV)
PIX
(12, 17.5 kV)
PIX
(24 kV)
PIX MCC
(7.2 kV)

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PIX
Compartment description
1 Main Busbar
2 Cable
3 Circuit Breaker
4 Low Voltage
1
3
4
2

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PIX
Main Busbar Compartment
Segregation of busbars
Main Busbar compartment

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PIX
Cable Compartment

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PIX
Circuit Breaker Compartment

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PIX
Low Voltage Compartment

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Maximum
Safety
Easy and
Safe Operation
Easy
Access
PIX
Operational Benefits

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PIX
Maximum Safety
Successfully tested against internal arc faults!
Pressure relief of compartments
Circuit breaker Busbar Cable connection
Circuit breaker Busbar Cable connection

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PIX
Maximum Personnel Safety
Protection Against Internal Arc
Gas Protection Deflectors

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PIX
Maximum Personnel Safety
Protection Against Internal Arc
Gas Evacuation Ducts

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PIX
Easy and Safe Operation
All mechanical operating procedures performed from the front -
with all doors securely closed!
 Mechanical operation of C.B. with closed front door

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PIX
Easy and Safe Operation
 Mechanical operation of C.B. with optional push button
mechanism with closed front door
All mechanical operating procedures performed from the front -
with all doors securely closed!

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PIX
Easy and Safe Operation
Moving the cassette Lift and open the door

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PIX
Easy and Safe Operation
 Interlocked plug-in auxiliary
connections
Fixing of the LV- connector to
the C.B. by horizontal locking
mechanism
Storage compartment for LV
plug / harness
Auxiliary plug (64-poles) is
interlocked with the C.B.
racking system
Electrical indication of plugged
position

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PIX
Easy and Safe Operation
 Functional transport trolley
Lift and drive to Dock on to the cubicle Fix steering wheels
Interlock the C.B. Move out C.B. Lift and remove

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PIX
Easy and Safe Operation
 Operation and indication in the cross member
Earthing Switch:
Operation, lockable
and interlocked
All “feeder elements“ are local to the feeder site!
Earthing Switch:
Position indicator
Voltage indicator
of feeder connection
Plug-in socket for
voltage indication

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PIX
Easy and Safe Operation
Operation and indication “Earthing”
(optional with key lock)
Unlock by “finger” !
 Common safe & easy operation throughout the PIX range
e.g. ‘’Circuit Earthing”
First unlock, insert the crank handle and operate the earthing
switch.

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PIX
Easy and Safe Operation
 Padlocking
Earthing switch Each Shutter discrete
Truck (2)
Optional:

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PIX
Easy and Safe Operation
Optional:

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 Easy assembly
All assembly procedures can
be performed from the front.
PIX
Easy Access

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PIX
Easy Access
 Easy assembly
All assembly procedures can
be performed from the front.
Removable division plate and
cross member between circuit
breaker and cable connection
compartments allows
enhanced access

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PIX
Easy Access
 Easy assembly
All assembly procedures can
be performed from the front.
Removable division plate and
cross member between circuit
breaker and cable connection
compartments allows
enhanced access
Cable compartment easily
accessible and spacious,
facilitating cable connection.

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PIX
Easy Access
In addition to the top covers
removable bus bar partitions
allow full installation from the
front
 Easy assembly
All assembly procedures can
be performed from the front.
Removable division plate and
cross member between circuit
breaker and cable connection
compartments allows
enhanced access
Cable compartment easily
accessible and spacious,
facilitating cable connection.

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PIX
Easy Access
Cubicle width 800/1000 mm: up to 4/6 cables per phase and 630mm² per cable
Including cable clamps and floor plate (IP3X)
 Spacious cable compartment

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Main Components
Compact and robust construction
 3150 A
Actuating force from rotary spring drive
Truck with Vacuum Circuit Breaker HVX
upto 3150 A

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Disconnecting Trucks UTX
Metering Truck MTX
24 kV
12 kV
Metering & Disconnecting Trucks
PIX
Main Components

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PIX High
Air-insulated Switchgear with
Vacuum Circuit Breaker

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 Developed for high ratings
 Robust construction
 Optimum operator safety
 Safe and easy operation
 Small foot print
PIX High
Advantages

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 Designed for high ratings
Rated currents up to 5000 A
Short-circuit current
50 kA, 3 sec.
Breaking capacity up to
50 kA / 17.5 kV
Making capacity of
earthing switch 125 kAp
Internal Arc Classification
(IAC) for 50 kA 1 sec.
Rated impulse withstand
voltage (BIL) up to 95 kVp
PIX High
Main Features

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PIX High
Description of Compartments
1
3
2
4
 1 Busbar compartment
Metal enclosed with 4 compartments
 2 Low-voltage cabinet
 3 Withdrawable circuit breaker
module with HVX
 4 Cable compartment

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PIX High
Main Features
 Robust construction
High-pressure resistant front
doors with interlocking flanges
on all sides. This means simple
operation combined with high
personal safety.
High current earthing circuit
up to 50kA (3s)
Combined sheet-metal
folding / joining / riveting
technique using galvanised
sheet-metal plates
Free standing and
self support chassis

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 Construction features
Metal shutters in front of
the rack-in fixed contacts
at 12kV and 17.5 kV
The shutters cannot be
opened manually - only
with separate lifting device
Separate lifting
mechanism for busbar and
outgoing feeder shutters
PIX High
Main Features

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PIX High
Circuit Breaker Module HVX
Robust flat contacts suited for heavy currents

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PIX High
Additional Modules
MTX UTX
Metering truck
Voltage transformer
with or without primary fuses
Disconnecting truck
up to 3150 A without fan
up to 5000 A with fan

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PIX High
One Transport Truck for 800mm and 1000 mm

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PIX High
Cable Fixing Area
PIX 12kV PIX 17.5 kV
X 529 mm 529 mm
L1 480 mm 480 mm
« Spacious cable connection area »
 Up to 8 cable/phase
 Cable cross sections up to 630mm²
 Standard is divided floor plate
(IP3X) with cable fixing clamps

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PIX High
Rear Cable Compartment Connection Box
« Flexible connection specially for high rated currents »

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PIX High
Rear Cable Compartment Connection Box
« Flexible connection specially for high rated currents »

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PIX High
» Technical data in accordance to IEC 62271-200
Rated voltage kV 12 17.5
Rated impulse withstand voltage (BIL) kVp 75 95
Rated frequency Hz 50/60 50/60
Rated current (step 1) up to A 4000 4000
Rated current (step 2)* up to A 5000 5000
Rated short time withstand current kA 50 (3s) 50 (3s)
Rated peak current kAp 125 125
Internal Arc Classification (IAC) AFL(R) kA 50 (1s) 50 (1s)
* in development

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 Height 2330 mm (w/o extensions)
 Depth 1590 mm
 Width 800 mm and 1000 mm
PIX High
Compact Dimension
Width depends on feeder currents:
1250 A 800 mm
2500 A 800 mm* or 1000 mm
3150 A 1000 mm
4000 A 1000 mm
5000 A 1000 mm
* max. 4 cable per phase
Optimum cubicle width
H
W D

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PIX High
Main Functions
»Circuit Breaker feeder, type CB40
M
Optional with
channel

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PIX High
IAC AFL(R) 50kA-1s, w. pressure relief channel into the room
1590 min. 1500
200
2330
2830
Remark:
Distance to ceiling
600mm (+/- 100mm)
acc. IEC 62271-200
3330
min. 500

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PIX
Questions & Answers